dmotz · FluorescentHallucinogen · Nov 25, 2016 · Nov 27, 2016
diff --git a/index.html b/index.html
@@ -2,9 +2,12 @@
 <html lang="en">
 <head>
   <meta charset="utf-8">
+  <meta name="theme-color" content="#212121">
+  <link rel="manifest" href="manifest.json">
   <meta name="description" content="Point your camera at things to hear how to say them in a different language">
   <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">
   <meta name="author" content="Dan Motzenbecker">
+  <script src="service-worker-registration.js"></script>
   <link href="https://fonts.googleapis.com/css?family=Montserrat:400,700" rel="stylesheet" type="text/css">
   <link href="app.css" rel="stylesheet" type="text/css">
   <title>Thing Translator</title>

diff --git a/logo-192x192.png b/logo-192x192.png
diff --git a/logo-512x512.png b/logo-512x512.png
diff --git a/logo.svg b/logo.svg
diff --git a/manifest.json b/manifest.json
@@ -0,0 +1,25 @@
+{
+	"name": "Thing Translator",
+	"short_name": "Thing Translator",
+	"start_url": "./?utm_source=homescreen",
+	"scope": "/",
+	"display": "standalone",
+	"theme_color": "#212121",
+	"background_color": "#fff",
+	"icons": [
+		{
+			"src": "logo-192x192.png",
+			"sizes": "192x192",
+			"type": "image/png"
+		},
+		{
+			"src": "logo-512x512.png",
+			"sizes": "512x512",
+			"type": "image/png"
+		},
+		{
+			"src": "logo.svg",
+			"type": "image/svg+xml"
+		}
+	]
+}
diff --git a/package.json b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "thing-translator",
-  "version": "0.0.1",
+  "version": "0.0.2",
   "description": "Thing Translator is an AI Experiment that lets you point your camera at things to hear how to say them in a different language.",
   "private": true,
   "main": "src/app.js",
@@ -11,9 +11,10 @@
   },
   "scripts": {
     "bundle": "NODE_ENV=production browserify -e src/app.js -g babelify -g envify -g unassertify -g uglifyify | uglifyjs > app.js",
-    "dev": "parallelshell 'npm run watch' 'npm run watch-style'",
+    "dev": "parallelshell 'npm run watch' 'npm run watch-style' 'npm run gen-sw-precache'",
     "watch": "budo src/app.js --live -- -t babelify",
-    "watch-style": "stylus -c -u nib -w style/main.styl -o app.css"
+    "watch-style": "stylus -c -u nib -w style/main.styl -o app.css",
+    "gen-sw-precache": "sw-precache --config=sw-precache-config.js"
   },
   "license": "MIT",
   "dependencies": {
@@ -29,6 +30,7 @@
     "nib": "^1.1.2",
     "parallelshell": "^2.0.0",
     "stylus": "^0.54.5",
+    "sw-precache": "^4.2.2",
     "uglify-js": "^2.7.4",
     "uglifyify": "^3.0.4",
     "unassertify": "^2.0.3"

diff --git a/service-worker-registration.js b/service-worker-registration.js
@@ -0,0 +1,57 @@
+/**
+ * Copyright 2015 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/* eslint-env browser */
+'use strict';
+
+if ('serviceWorker' in navigator) {
+  // Your service-worker.js *must* be located at the top-level directory relative to your site.
+  // It won't be able to control pages unless it's located at the same level or higher than them.
+  // *Don't* register service worker file in, e.g., a scripts/ sub-directory!
+  // See https://github.com/slightlyoff/ServiceWorker/issues/468
+  navigator.serviceWorker.register('service-worker.js').then(function(reg) {
+    // updatefound is fired if service-worker.js changes.
+    reg.onupdatefound = function() {
+      // The updatefound event implies that reg.installing is set; see
+      // https://slightlyoff.github.io/ServiceWorker/spec/service_worker/index.html#service-worker-container-updatefound-event
+      var installingWorker = reg.installing;
+
+      installingWorker.onstatechange = function() {
+        switch (installingWorker.state) {
+          case 'installed':
+            if (navigator.serviceWorker.controller) {
+              // At this point, the old content will have been purged and the fresh content will
+              // have been added to the cache.
+              // It's the perfect time to display a "New content is available; please refresh."
+              // message in the page's interface.
+              console.log('New or updated content is available.');
+            } else {
+              // At this point, everything has been precached.
+              // It's the perfect time to display a "Content is cached for offline use." message.
+              console.log('Content is now available offline!');
+            }
+            break;
+
+          case 'redundant':
+            console.error('The installing service worker became redundant.');
+            break;
+        }
+      };
+    };
+  }).catch(function(e) {
+    console.error('Error during service worker registration:', e);
+  });
+}
diff --git a/sw-precache-config.js b/sw-precache-config.js
@@ -0,0 +1,12 @@
+module.exports = {
+  staticFileGlobs: [
+    'index.html',
+    'app.js',
+    'app.css',
+    'service-worker-registration.js',
+    'manifest.json',
+    'logo-192x192.png',
+    'logo-512x512.png',
+    'logo.svg'
+  ]
+};